Make every new subscriber a paid affiliate to increase sales.

You don't need to wait for revenue-sharing partners to come to you. Your email subscribers and customers are already fans, so make them affiliates automatically and ensure that they have no reason not to participate.

Systeme.io ($126,000/mo) makes 75% of its revenue from affiliates, and the "how" of it is actually quite simple. They make every single person on their mailing list an affiliate automatically, which means they get a share of the revenue when they refer others to the product. It's not just a standard user referral program. When someone is added to the list by subscribing or purchasing a product, System.io sends an affiliate ID, as well as access to the affiliate dashboard which gives the user access to promotional tools like free offerings, multiple sales funnels, and so on. The new subscriber probably never even considered becoming an affiliate but with the heavy lifting already done, why not make some extra cash? And, just in case, Systeme.io continues encouraging them in newsletters and follow-up emails.